c - What is the difference between (int*) arr[2] and int* arr[2]? -

What's with the [int *] arr [2] typecasting? If so, where is it used?

This problem arose when I tried to compile the follwing code:

  int * arr [2]; Int arr1 [] = {1,2}; Int arr2 [] = {1,6}; Arr [0] = arr1; Arr [1] = arr2;   
 instead of  
  int [2] with (int *) arr [2]   
 Thank you.   
 
 
 first creates a  arr  int as an array of pointers Your  arr  is a variable, it's an announcement line.  
 The second one: It is believed that  arr  is an array (which is completely declared!), Assumes  arr [2]  And type  pointer to int  to type it on.